Helical Gears: Geometry and force analysis- Direction of tangential, radial and axial loads 

Thank for your great lesson!

Thanks for the video, it was very helpful. I was also looking for the axial load direction on the helical gears. Thanks...

Dear Mr. Engineer, please tell me something about double helical gears, especially the herringbone gears. Is there any preferred direction with those gears? If yes, then tell me why. I don't care oil circulation/expelling like a car rain-tires. It runs dry. Thank you!

Hi there, Thank you for such a great video. I am attempting to design a helical planetary gearbox for a project I am working on and wanted to know what book this text was from. This is just so I can reference it and to calculate the tooth loads. Thank you in advance.